feat: AI-game refinements (GCG, your_turn, admin, metrics)

Follow-ups on the honest-AI game, same PR:
- GCG export labels the robot seat "AI" instead of its pool name (ExportGCG
  overrides via accounts.IsRobot); the in-app 🤖 is unchanged.
- vs_ai games emit no your_turn (the robot replies instantly, so it would be
  redundant); opponent_moved still advances the UI.
- Admin console shows the AI flag: a 🤖 column in /games and an "AI game" line
  on the game card (GameRow/GameDetailView gain VsAI).
- games_started_total / games_abandoned_total gain a vs_ai attribute; the
  Grafana Game-domain dashboard splits started/abandoned into human and AI
  panels.

Tests: metrics unit (vs_ai split); integration (no your_turn, GCG "AI").

backend/internal/game/metrics.go

@@ -101,15 +101,22 @@ func phaseOf(moveCount int) string {
 	}
 }
 
-// recordStarted counts one started game of variant.
-func (m *gameMetrics) recordStarted(ctx context.Context, v engine.Variant) {
-	m.started.Add(ctx, 1, variantAttr(v))
+// recordStarted counts one started game of variant, split by whether it is an
+// honest-AI game (the vs_ai attribute), so AI and human games chart separately.
+func (m *gameMetrics) recordStarted(ctx context.Context, v engine.Variant, vsAI bool) {
+	m.started.Add(ctx, 1, gameKindAttr(v, vsAI))
 }
 
 // recordAbandoned counts one seat dropped by the turn-timeout sweeper in a game of
-// variant.
-func (m *gameMetrics) recordAbandoned(ctx context.Context, v engine.Variant) {
-	m.abandoned.Add(ctx, 1, variantAttr(v))
+// variant, split by the vs_ai attribute (an AI game's abandon is the 7-day rule).
+func (m *gameMetrics) recordAbandoned(ctx context.Context, v engine.Variant, vsAI bool) {
+	m.abandoned.Add(ctx, 1, gameKindAttr(v, vsAI))
+}
+
+// gameKindAttr is the (variant, vs_ai) attribute set shared by the started and
+// abandoned counters so AI and human games are split on the same labels.
+func gameKindAttr(v engine.Variant, vsAI bool) metric.MeasurementOption {
+	return metric.WithAttributes(attribute.String("variant", v.String()), attribute.Bool("vs_ai", vsAI))
 }
 
 // variantAttr is the shared "variant" attribute option, usable for both Record and

backend/internal/game/metrics_test.go

@@ -20,10 +20,12 @@ func TestGameMetrics(t *testing.T) {
 	meter := sdkmetric.NewMeterProvider(sdkmetric.WithReader(reader)).Meter("test")
 	m := newGameMetrics(meter)
 
-	m.recordStarted(ctx, engine.VariantEnglish)
-	m.recordStarted(ctx, engine.VariantEnglish)
-	m.recordStarted(ctx, engine.VariantRussianScrabble)
-	m.recordAbandoned(ctx, engine.VariantErudit)
+	m.recordStarted(ctx, engine.VariantEnglish, false)
+	m.recordStarted(ctx, engine.VariantEnglish, false)
+	m.recordStarted(ctx, engine.VariantRussianScrabble, false)
+	m.recordStarted(ctx, engine.VariantEnglish, true) // an honest-AI game
+	m.recordAbandoned(ctx, engine.VariantErudit, false)
+	m.recordAbandoned(ctx, engine.VariantEnglish, true) // an AI game abandoned (the 7-day rule)
 	m.recordReplay(ctx, engine.VariantEnglish, time.Now().Add(-time.Millisecond))
 	m.recordValidate(ctx, engine.VariantRussianScrabble, time.Now().Add(-time.Millisecond))
 	m.recordMoveDuration(ctx, engine.VariantEnglish, 3, 5*time.Second)
@@ -35,11 +37,15 @@ func TestGameMetrics(t *testing.T) {
 	}
 
 	started := counterByAttr(t, rm, "games_started_total", "variant")
-	if started["scrabble_en"] != 2 || started["scrabble_ru"] != 1 {
-		t.Errorf("games_started_total = %v, want scrabble_en:2 scrabble_ru:1", started)
+	if started["scrabble_en"] != 3 || started["scrabble_ru"] != 1 {
+		t.Errorf("games_started_total = %v, want scrabble_en:3 scrabble_ru:1", started)
 	}
-	if abandoned := counterByAttr(t, rm, "games_abandoned_total", "variant"); abandoned["erudit_ru"] != 1 {
-		t.Errorf("games_abandoned_total = %v, want erudit_ru:1", abandoned)
+	// The vs_ai attribute splits AI from human games for the per-kind Grafana panels.
+	if byKind := counterByAttr(t, rm, "games_started_total", "vs_ai"); byKind["false"] != 3 || byKind["true"] != 1 {
+		t.Errorf("games_started_total by vs_ai = %v, want false:3 true:1", byKind)
+	}
+	if abandoned := counterByAttr(t, rm, "games_abandoned_total", "vs_ai"); abandoned["false"] != 1 || abandoned["true"] != 1 {
+		t.Errorf("games_abandoned_total by vs_ai = %v, want false:1 true:1", abandoned)
 	}
 	if c := histogramCount(t, rm, "game_replay_duration"); c != 1 {
 		t.Errorf("game_replay_duration observations = %d, want 1", c)
@@ -78,7 +84,7 @@ func counterByAttr(t *testing.T, rm metricdata.ResourceMetrics, name, attr strin
 			}
 			for _, dp := range sum.DataPoints {
 				v, _ := dp.Attributes.Value(attribute.Key(attr))
-				out[v.AsString()] += dp.Value
+				out[v.Emit()] += dp.Value // Emit renders any attribute type (string or bool) to a key
 			}
 		}
 	}

backend/internal/game/service.go

@@ -235,7 +235,7 @@ func (svc *Service) Create(ctx context.Context, params CreateParams) (Game, erro
 		return Game{}, err
 	}
 	svc.cache.put(id, g, params.Variant.String())
-	svc.metrics.recordStarted(ctx, params.Variant)
+	svc.metrics.recordStarted(ctx, params.Variant, params.VsAI)
 	created, err := svc.store.GetGame(ctx, id)
 	if err != nil {
 		return Game{}, err
@@ -303,7 +303,7 @@ func (svc *Service) OpenOrJoin(ctx context.Context, accountID uuid.UUID, params
 		return Game{}, false, err
 	}
 	if created {
-		svc.metrics.recordStarted(ctx, params.Variant)
+		svc.metrics.recordStarted(ctx, params.Variant, params.VsAI)
 	}
 	g, err := svc.store.GetGame(ctx, gameID)
 	if err != nil {
@@ -645,8 +645,9 @@ func (svc *Service) commit(ctx context.Context, gameID uuid.UUID, g *engine.Game
 
 // emitMove publishes the live events for a just-committed move: opponent_moved to
 // every seat — including the actor's own account, so the mover's other devices (and
-// their lobby) refresh too — and your_turn to the next mover while the game is still
-// active. opponent_moved is in-app only (the gateway never turns it into an
+// their lobby) refresh too — and, in human games only, your_turn to the next mover
+// while the game is still active (an honest-AI game suppresses your_turn, since the
+// robot replies at once). opponent_moved is in-app only (the gateway never turns it into an
 // out-of-app push), so the actor is not notified out of band about their own move.
 // Delivery is best-effort (notify.Publisher never blocks) and the gateway fans each
 // event out to all of the recipient's live streams.
@@ -666,7 +667,10 @@ func (svc *Service) emitMove(ctx context.Context, post Game, rec engine.MoveReco
 	lang := post.Variant.Language()
 	switch post.Status {
 	case StatusActive:
-		if next, ok := seatAccount(post.Seats, post.ToMove); ok {
+		// Honest-AI games suppress your_turn: the robot replies instantly, so a "your turn"
+		// notification would arrive together with the AI's move and carry no value — the
+		// human's UI already advances from opponent_moved. Only human games signal the mover.
+		if next, ok := seatAccount(post.Seats, post.ToMove); ok && !post.VsAI {
 			deadline := post.TurnStartedAt.Add(post.TurnTimeout)
 			action := rec.Action.String()
 			word := ""
@@ -674,9 +678,6 @@ func (svc *Service) emitMove(ctx context.Context, post Game, rec engine.MoveReco
 				word = rec.Words[0]
 			}
 			opponent := svc.displayName(ctx, post.Seats, rec.Player)
-			if post.VsAI {
-				opponent = aiOpponentName // the player chose an AI game; show the robot as 🤖, not its pool name
-			}
 			yourTurn := notify.YourTurn(next, post.ID, deadline, opponent, action, word, scoreLine(post, post.ToMove), post.MoveCount)
 			yourTurn.Language = lang
 			intents = append(intents, yourTurn)
@@ -809,7 +810,7 @@ func (svc *Service) timeoutGame(ctx context.Context, gameID uuid.UUID, now time.
 	if _, err := svc.commit(ctx, gameID, g, rec, "timeout", rackBefore, nil, cur.Seats, cur.VsAI); err != nil {
 		return false, err
 	}
-	svc.metrics.recordAbandoned(ctx, cur.Variant)
+	svc.metrics.recordAbandoned(ctx, cur.Variant, cur.VsAI)
 	return true, nil
 }
 
@@ -1210,7 +1211,16 @@ func (svc *Service) ExportGCG(ctx context.Context, gameID uuid.UUID) (string, er
 	if err != nil {
 		return "", err
 	}
-	return writeGCG(g, svc.seatNames(ctx, g), moves), nil
+	names := svc.seatNames(ctx, g)
+	if g.VsAI {
+		// Label the robot seat "AI" in an honest-AI game's export, not its pool name.
+		for _, s := range g.Seats {
+			if robot, err := svc.accounts.IsRobot(ctx, s.AccountID); err == nil && robot {
+				names[s.Seat] = aiPlayerName
+			}
+		}
+	}
+	return writeGCG(g, names, moves), nil
 }
 
 // liveGame returns the live engine.Game for pre, rebuilding it from the journal

backend/internal/game/types.go

@@ -87,10 +87,10 @@ const DefaultTurnTimeout = 24 * time.Hour
 // one of AllowedTurnTimeouts (never offered in the creation UI).
 const AIInactivityTimeout = 7 * 24 * time.Hour
 
-// aiOpponentName is the display marker shown for the robot in an honest-AI game's
-// out-of-app pushes, so the player who chose an AI game never sees the robot's
-// human-like pool name. The in-app UI applies the same 🤖 from the game's vs_ai flag.
-const aiOpponentName = "🤖"
+// aiPlayerName labels the robot seat in an honest-AI game's GCG export, so a downloaded
+// game file shows a clean "AI" rather than the robot's human-like pool name (the in-app
+// UI shows 🤖 from the game's vs_ai flag).
+const aiPlayerName = "AI"
 
 // CreateParams describes a new game. Seats lists the seated accounts in turn
 // order (seat 0 moves first); lobby/matchmaking assembles it in a later stage.